Evaporator Core: Description and Operation

The Evaporator is a heat exchanger which evaporates refrigerant, i.e. heats it and vaporizes it. It takes the heat it needs from the air. The cool air then passes into the passenger compartment. The evaporator emits gas and a small amount of liquid at low pressure 1.5-3 bar (22-44 psi) and low temperature approx. 2-5 °C (36-41 °F).